any that use alot of styrene sheets to build with know it can get costly. go to your local hardware store. ask them to see the one piece cheapie tub surround kits. you get an 8'x4' sheet of plastic that shares same properties as styrene for bout $42.00 canadian. it works great, very easy to cut,shape,its flexible.as far as the soap dish thingy it comes with,,glue it in ur shower,or,cut it up and use it for scenery gluing your ground cover to it.
"THE IMAGINATION IS THE ONLY THING BETWEEN YOUR LAYOUT AND GREATNESS"
